Main Parameters :Input Voltage: AC100-277V 50-60HzLED Luminous Efficiency: 90LM-100LM/W (Epistar 14*28); 100LM-120LM/W(Epistar 18*33)Working Temperature: -40℃~+45℃Color of housing: White,Website:http://www.bescon-led.com, Black, Silver.Certificate: CE/ROHS/SASOModel No.PowerDiameter Head Dia.HeightBeam AngleLED BrandCCT.CRIPFOutput VoltageOutput CurrentLumenBS-SFDL-20W20W106mm106mm155mm30°/60°Epistar14*28 or 18*333000K/4000K/6000K>800.9-0.9718-30V700mA2200-2500lmBS-SFDL-30W30W132mm132mm160mm30°/60°Epistar14*28 or 18*333000K/4000K/6000K>800.9-0.9730-36V1000mA3300-3700lmBS-SFDL-40W40W157mm157mm180mm30°/60°Epistar14*28 or 18*333000K/4000K/6000K>800.9-0.9727-42V1000mA4100-4800lmBS-SFDL-50W50W187mm187mm190mm30°/60°Epistar14*28 or 18*333000K/4000K/6000K>8030°/60°35-55V1000mA5600-6300lmService:--Your inquiry related to our products or prices will be replied within 12 hours.--We offer OEM services. Can print your own logo on product, customized box packing and others.--Protection of your sales area, ideas of design and all your private information.--Delivery Time: 2-4Working days for sample.8-15 Working days for big order.--We have very experienced R&D engineers.--Continually innovation, honest business, and first-class service is our philosophy.